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Mechanism and Regulation of Pre-mRNA Splicing: 3rd Edition

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Biology".

Deadline for manuscript submissions: 20 January 2025 | Viewed by 1997

Special Issue Editor

Special Issue Information

Dear Colleagues,

In eukaryotes, most gene transcripts or pre-mRNAs are interrupted by intervening sequences termed introns, which are precisely removed by a process called splicing. This process is essential since spliced mRNAs serve as templates for proteins. Regulation in the splicing process is certainly crucial for a wide variety of biological and physiological phenomena. The process is therefore highly discriminatory and faithful, and mis-regulation in this process causes disorders in cell functions, often with severe clinical consequences.

This Special Issue will cover, but is not limited to, the following topics:

  • The mechanism and regulation of constitutive and alternative splicing;
  • The mechanism and regulation of splicing-linked post-splicing processes;
  • Pre-mRNA–protein interactions involved in splicing and splicing-linked processes;
  • hnRNP/mRNP assembly and functions in splicing and splicing-linked processes;
  • Evolutional studies of pre-mRNAs and splicing;
  • Pre-mRNA processing in development and diseases including cancers.

Prof. Dr. Akila Mayeda
Guest Editor

Manuscript Submission Information

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Keywords

  • pre-mRNA Splicing
  • splicing
  • mechanism of splicing
  • regulation of splicing
  • aberrant splicing in diseases

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Published Papers (1 paper)

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Research

16 pages, 2749 KiB  
Article
Interplays between cis- and trans-Acting Factors for Alternative Splicing in Response to Environmental Changes during Biological Invasions of Ascidians
by Xuena Huang, Hanxi Li and Aibin Zhan
Int. J. Mol. Sci. 2023, 24(19), 14921; https://doi.org/10.3390/ijms241914921 - 5 Oct 2023
Viewed by 1504
Abstract
Alternative splicing (AS), a pivotal biological process contributing to phenotypic plasticity, creates a bridge linking genotypes with phenotypes. Despite its importance, the AS mechanisms underlying environmental response and adaptation have not been well studied, and more importantly, the cis- and trans-acting [...] Read more.
Alternative splicing (AS), a pivotal biological process contributing to phenotypic plasticity, creates a bridge linking genotypes with phenotypes. Despite its importance, the AS mechanisms underlying environmental response and adaptation have not been well studied, and more importantly, the cis- and trans-acting factors influencing AS variation remain unclear. Using the model invasive congeneric ascidians, Ciona robusta, and Ciona savignyi, we compared their AS responses to environmental changes and explored the potential determinants. Our findings unveiled swift and dynamic AS changes in response to environmental challenges, and differentially alternative spliced genes (DASGs) were functionally enriched in transmembrane transport processes. Interestingly, both the prevalence and level of AS in C. robusta were lower than those observed in C. savignyi. Furthermore, these two indices were higher under temperature stresses compared to salinity stresses in C. savignyi. All the observed patterns underscore the species-specific and environmental context-dependent AS responses to environmental challenges. The dissimilarities in genomic structure and exon/intron size distributions between these two species likely contributed to the observed AS variation. Moreover, we identified a total of 11 and 9 serine/arginine-rich splicing factors (SRSFs) with conserved domains and gene structures in the genomes of C. robusta and C. savignyi, respectively. Intriguingly, our analysis revealed that all detected SRSFs did not exhibit prevalent AS regulations. Instead, we observed AS control over a set of genes related to splicing factors and spliceosome components. Altogether, our results elucidate species-specific and environmental challenge-dependent AS response patterns in closely related invasive ascidians. The identified splicing factors and spliceosome components under AS control offer promising candidates for further investigations into AS-mediated rapid responses to environmental challenges complementary to SRSFs. Full article
(This article belongs to the Special Issue Mechanism and Regulation of Pre-mRNA Splicing: 3rd Edition)
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